If you watch the rail youtube webcams, you would think are in the midst of WW2 with long trains carrying a variety of tanks, support vehicles APC's and humvees.
Micro trains announced it is making an HO, yes HO, Humvee
Not my era, but passing it along.
Henry
COB Potomac & Northern
Shenandoah Valley
The other thing they have, except in N scale, are representative models of those MOW white trailer type boxes on flat cars that someone was asking about in another post:
Do they have the three rows of scale shackles for the FEMA ones?